You can now provide multiple roots to a single `find()` call and all of
them will be searched. The roots can overlap (e.g. can be parents of one
another).
This also adds a library function for taking a set of regular expression
patterns and creating a single OR expression (and that library function
is used in `find` to improve its performance).
Set command line scopes last in _main, so they are higher scopes
Restore the global configuration in a spawned process by inspecting
the result of ctx.get_start_method()
Add the ability to pass a mp.context to PackageInstallContext.
Add shell-tests to check overriding the configuration:
- Using both -c and -C from command line
- With and without an environment active
* edm4hep: Add json variant for newer versions
Explicit option has been added to EDM4hep so we now expose it via a
variant as well. We keep the old behavior where we unconditionally
depended on nlohmann-json and implicitly built JSON support if we could
detect it cmake stage
* Fix condition statement in when clause
* Use open version range to avoid fixing to single version
---------
Co-authored-by: Valentin Volkl <valentin.volkl@cern.ch>
Variants can now be propagated from a dependent package to (transitive) dependencies,
even if the source or transitive dependencies have the propagated variants.
For example, here `zlib` doesn't have a `guile` variant, but `gmake` does:
```
$ spack spec zlib++guile
- zlib@1.3%gcc@12.2.0+optimize+pic+shared build_system=makefile arch=linux-rhel8-broadwell
- ^gcc-runtime@12.2.0%gcc@12.2.0 build_system=generic arch=linux-rhel8-broadwell
- ^gmake@4.4.1%gcc@12.2.0+guile build_system=generic arch=linux-rhel8-broadwell
```
Adding this property has some strange ramifications for `satisfies()`. In particular:
* The abstract specs `pkg++variant` and `pkg+variant` do not intersect, because `+variant`
implies that `pkg` *has* the variant, but `++variant` does not.
* This means that `spec.satisfies("++foo")` is `True` if:
* for concrete specs: `spec` and its dependencies all have `foo` set if it exists
* for abstract specs: no dependency of `spec` has `~foo` (i.e. no dependency contradicts `++foo`).
* This also means that `Spec("++foo").satisfies("+foo")` is `False` -- we only know after concretization.
The `satisfies()` semantics may be surprising, but this is the cost of introducing non-subset
semantics (which are more useful than proper subsets here).
- [x] Change checks for variants
- [x] Resolve conflicts
- [x] Add tests
- [x] Add documentation
---------
Co-authored-by: Gregory Becker <becker33@llnl.gov>
Co-authored-by: Massimiliano Culpo <massimiliano.culpo@gmail.com>
* pythia8: Include patch for C++20 / Clang
Pythia8 vendors some FJCore sources that are as of Pythia8 312
incompatible with C++20 on clang. This adds a patch that makes it
compatible in these scenarios
* Add issue link
* rename setup_cxxstd function
* Remove an accidental printout
* Apply patch to all compilers, add lower bound
* `find(..., max_depth=...)` can be used to control how many directories at most to descend into below the starting point
* `find` now enters every unique (symlinked) directory once at the lowest depth
* `find` is now repeatable: it traverses the directory tree in a deterministic order
